defense turret 3d model

Low poly game-ready 3D model of an old mechanical defense turret, worn industrial style, chunky metal construction, single thick cannon barrel, cylindrical rotating base, exposed bolts and panel seams, slightly rusted steel with faded military green paint and yellow hazard stripes, simple geometric shapes, no tiny fragile parts, clean topology, optimized mesh, centered pivot at base, separate barrel and base objects, neutral lighting, no background, PBR ready, suitable for real-time game engines